fix: Users cannot join expired beacons. (#74)

* fix: Users cant join expired beacons.

* Update graphql/resolvers.js

Formated code.

Co-authored-by: Aadi Bajpai <[email protected]>

* This works! (tested locally)

Co-authored-by: Aadi Bajpai <[email protected]>

Author: Aadeesh11

graphql/resolvers.js

@@ -117,6 +117,7 @@ const resolvers = {
             const beacon = await Beacon.findOne({ shortcode });
 
             if (!beacon) return new UserInputError("No beacon exists with that shortcode.");
+            if (beacon.expiresAt < Date.now()) return new Error("Beacon has expired");
             if (beacon.followers.includes(user)) return new Error("Already following the beacon");
 
             beacon.followers.push(user);